See also:

Changing engine coolant
A NISSAN dealer can change the engine coolant. The service procedure can be found in the NISSAN Service Manual. Improper servicing can result in reduced heater performance and engine overheating ...

Overdrive (O/D) OFF switch
Overdrive (O/D) OFF switch When the O/D OFF switch is pushed with the shift selector in the D (Drive) position, the light in the instrument panel illuminates. See “Overdrive off indicator ...

NISSAN dealer.
However, now and then you may notice light spark knock for a short time while accelerating or driving up hills. This is not a cause for concern, because you get the greatest fuel benefit when ther ...